baber/WOPTO huggingface dataset:
Patent GB-351361-A (GB)
Title: Machine for polishing the edges of double edged razor blades
IPC: B24B3/48
Filed: 1930-10-14
Abstract: 351,361. Polishing razor blades. WLOKA, M., 10, Friedensstrasse, Solingen, Germany. Oct. 14, 1930, No. 30713. Convention date, Oct. 18, 1929. [Class 60.] Cutting-edges treating ; wheels.-In polishing double-edged razor blades, two blades are mounted side by side on a carriage reciprocated past polishing rolls so as to polish the outer edge of each blade on both sides, a transverse slide carrying grippers being provided to supply a fresh blank, remove a finished one and simultaneously move the blade which has been polished on one edge into position on the carriage to have the other edge polished. The polishing rolls 12 . . 15, which may be of leather or leather-covered wood, interengage as shown and are carried by shafts 8 .. 11 mounted in-bearings 4 .. 7 on standards 2, 3 and driven by belts 16 .. 19 from the main shaft 20. The carriage 27 is reciprocated between the rolls by a roller 30 thereon engaging a cam groove 31 on a drum 24 which is rotated by a pinion 28 and a belt 25 from the shaft 20. Spring-pressed grippers 38, 39, 40 are carried by a transverse slide 34 reciprocated in guides 33 by means of a slotted lever 35 pivoted at 26a and oscillated by an end cam on the drum 24 engaging a roller 37. In operation, when the carriage 27 is retracted as shown in Fig. 1 a lever 46 is rocked by a projection 48, Fig. 2, on the drum 24 to rock a shaft 41 and cause levers 42 .. 45 thereon to depress the grippers, which simultaneously receive a suction or magnetic force. The gripper 38 thereupon lifts a blank from the top of a pile located on pins 50 on a plate 51, the plate being preferably raised so that the top blank is always at the same height. The gripper 39 lifts a blank which has been polished on one edge from the carriage 27 and the gripper 40 a finished blade from the other side of the carriage, whereupon the lever 35 moves the slide 34 laterally and a second projection 49 on the drum again rocks the lever 35 to depress the grippers to allow the new and partly finished blades to be deposited on the carriage, the suction &c. being simultaneously cut off. A fourth lever 45 on the shaft 41 depresses the gripper 40 to deposit a finished blade on guide pins 53. When the grippers rise again the carriage 27 is moved forwards and back again to polish the blades thereon and the slide 34 is returned to the position shown in Fig. 2.
Patent GB-1466685-A (GB)
Title: Safety tyres for self-propelled vehicles
IPC: B60C7/10
Filed: 1974-07-11
Abstract: 1466685 Pneumatic tyres BASF AG 11 July 1974 [12 July 1973] 30716/74 Heading B7C [Also in Division C3] A tubeless safety tyre for a self-propelled vehicle, e.g. car or lorry, is filled with closedcell foamed particles of an at least partially crystalline polymer of at least one C 2-6  olefine polymer, e.g. polypropylene, polyethylene, polybutene-1 or a vinyl acetate/ethylene copolymer, which has a melt index (as defined) of 0À1-200 g./10 min. and contains at least 50% by wt. of C 2-6  olefin units. The tyres are filled with the foam by feeding the particles, e.g. through an opening in the rim of the wheel by means of a compressed air filling pistol, into the space between the rim of the wheel and the inside wall of the tyre, and then pumping gas, e.g. air, into the tyre.
Patent GB-706484-A (GB)
Title: Improvements in or relating to non-fibrous cellulosic material and process of treating same
IPC: C08J7/04
Filed: 1950-12-18
Abstract: 706,484. Coated cellulosic films. AMERICAN CYANAMID CO. Dec. 18, 1950 [May 5, 1950], No. 30758/50. Class 140 The water-repellency of non-fibrous cellulosic films is improved by impregnating at least one surface with a water-soluble urea-formaldehyde resin modified by reaction with an aminoalkylsulphuric acid or salt thereof having the general formula NH2(CH2)nOSO3X, wherein n is 1 to 6, and X is a hydrogen, lithium, sodium or potassium atom or an ammonium or tertiary organic-substituted ammonium group, wherein the mol. ratios of urea, formaldehyde and aminoalkyl-sulphuric acid or salt thereof in the resin are within the range 1 : 1.5 : 0.015 to 1 : 3.0 : 0.25 introducing a plasticizing agent, e.g. 8 per cent. glycerol solution, into the film prior to, simultaneously with, or subsequent to resin impregnation, drying the film, partially polymerizing, and applying a water-repellant coating. The preparation of the resins is disclosed in Specification 697,801. Aminomethylsulphuric acid, 2-aminoethylsulphuric acid, 3-aminopropylsulphuric acid, 4-aminobutylsulphuric acid, 5-aminoamylsulphuric acid, and 6-aminohexylsulphuric acid, and salts thereof are specified as modifying agents. The films treated are various regenerated celluloses, and cellulose esters and ethers. Coating compositions listed are those containing cellulose acetate or nitrate, ethyl or methyl cellulose, deacetylated chitin, rubber, chlorinated or cyclocized rubber, rubber hydrochloride, synthetic rubbers, or methacrylate polymers. Waxes, plasticizers, gums and pigments may also be present in the compositions. The impregnating solution may contain 0.01-10 per cent. by weight of resin, aid is neutral or alkaline. Drying and curing are suitably effected at 200‹F.
Patent GB-332474-A (GB)
Title: Vacuum chuck
IPC: C03B23/00
Filed: 1929-10-11
Abstract: 332,474. Triggs, W. W., (Libbey Glass Manufacturing Co.). Oct. 11, 1929. Shaping glassu:are after formation. - A vacuum chuck suitable for holding hollow glassware during burning off by a burner 33, comprises a perforated plate 21 having a flange 22 to engage a chuck body 14, a tube 36 slidable in a hollow spindle 10 engaging a socket in the plate and being pivoted thereto at 26. A vacuum tube 20 communicates through openings 29 and channels 30 with a plate 21 when the flange 22 is against the upper face of the chuck body, the article 34 being thus retained, centring being effected bv annular ribs 18, 19. To break the vacuum and release the article, the spindle is raised until the vacuum tube forces downwards the tube 36. The spindle carries a pinion 12 for effecting its rotation having a flange 13 to rest on a suitable support.
Patent GB-190612-A (GB)
Title: Improvements relating to lamp brackets or carriers for vehicles
IPC: B60Q1/04
Filed: 1921-11-21
Abstract: 190,612. Mair, J. A., and Mackinnon, L. Nov. 21, 1921. Anti-vibration devices.- A lamp p bracket comprises a parallel-motion anti-vibration device which is attached to the vehicle bv means of a fixed member A. The la.tter is connected to the lamp-supporting member B by pivotally-mounted arms C, D, the upper arm C being also attached to the member A by means of springs F, G.
Patent GB-647125-A (GB)
Title: Improvements in and relating to pulse amplifiers
IPC: H03K5/145
Filed: 1946-10-18
Abstract: 647,125. Pulse amplifying and delaying circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 18, 1946, No. 31063. Convention date, Nov. 2, 1942. Drawings to Specification. [Class 40 (vi)] In a multistage pulse amplifier each stage is normally blocked and has an inductive load across which a positive pulse is produced upon the termination of a positive input pulse which momentarily unblocks the stage, the pulse across the inductive load serving to unblock the next valve. Since the resonant circuit formed by the inductive load and stray capacitances is such that a second positive pulse of appreciable amplitude is produced, the circuit is arranged so that the first pulse drives the next stage into grid current, thus increasing the charge on the coupling capacitor sufficiently to prevent the second positive pulse from unblocking the stage.
Patent GB-817107-A (GB)
Title: Mail picking-up device
IPC: B25B11/00
Filed: 1956-10-12
Abstract: 817,107. Holding and picking-up tools. WINCHESTER, W. Oct. 12, 1956, No. 31080/56. Class 61. A magnetic tool for holding and picking-up nails comprises a steel wire handle 1 bent through 40 degrees which has attached to the extremity thereof a brass sleeve 2 into which is pressed a cylindrical bar magnet 3. A V- shaped slot is formed across the end of the sleeve, the visible end of the magnet being in line with the base of the slot.
Patent GB-197974-A (GB)
Title: Improvements in, or relating to, the refining of oils
IPC: C11B3/06
Filed: 1921-11-22
Abstract: 197,974. Lemmens, G. J. Nov. 22, 1921. Fats and fatty oils, purifying.-In refining fatty oils by alkali, the oil is atomized into a large bulk of preefrably dilute alkali solution. In the apparatus shown, the oil is forced through atomizing nozzles c into alkali in a vat a provided with a steam coil a<1>. The purified oil flows away through pipe f. Used alkali is withdrawn through pipe h, while fresh is supplied through pipe g. The nozzles may be of the type shown in Specifications 20343/92 or 16295/13, [both in Class 69 (iii), Spray-producers &c.].
Patent GB-663832-A (GB)
Title: Method for manufacturing a cellular structured rubber product
IPC: C08J9/06
Filed: 1947-11-24
Abstract: 663,832. Porous rubber. CAVALIERI, M Nov. 24, 1947 [Feb. 14, 1946; Oct. 13, 1946], Nos. 31121/47 and 31122/47. Class 70 Cellular articles are produced by heating a mixture of natural, synthetic or reclaimed rubber and sawdust without pressure until the mix expands with formation of cells and then continuing heating with application of pressure to vulcanize the mix. In examples, sawdust or a mixture of sawdust and peat is added to a mix containing a rubber, plasticizer, zinc oxide, mercaptobenzthiazole disulphide, tetra-ethyl thiuram monosulphide, aldol naphthylamine and sulphur and the whole submitted to a baking period of 10 minutes at 140‹C. in a mould without application of pressure and then to a 5 minute baking process at 140‹C. at a pressure sufficient to keep the mould closed and finally to a 7 minute baking at 155‹C. to complete vulcanization. Specification 646,815 is referred to.
Patent GB-974714-A (GB)
Title: Improvements in or relating to hydraulic control systems and methods
Inventor: WATSON JOHN REED
IPC: F15B13/043
Filed: 1962-08-14
Abstract: 974,714. Hydraulic apparatus. APPLIED POWER INDUSTRIES Inc. Aug. 14, 1962, No. 31156/62. Heading F1P. A method of controlling the operation of an hydraulic motor RS, Fig. 1, comprises the steps of pumping hydraulic fluid into a first flow path 12 to deliver fluid to the motor and a second flow path 56 to exhaust, blocking the second flow path with means 28 for preventing flow to exhaust 32, directing a portion of the hydraulic fluid into a variable volume chamber upstream of the blocking means and through a reducing means in the second flow path between the chamber and first flow path, during the pumping step, and trapping such portion in the chamber by closing the reducing means, continuing the pumping to thereby operate the motor, and unblocking the second flow path by removing the blocking means to exhaust the second flow path and open the reducing means. The pump is connected to lines L1, L2 and controlled by a switch 22 and delivers fluid through a pipe 14 and one-way valve 15 to the first flow path 12 connected to the motor R2 and the second flow path 56 which is connected by a reducing valve 51, 52 to the chamber 45. The reducing valve has a ball 52 which is urged towards a seating 51 by a spring 53 and can be lifted from the seating by a stem 38 extending from a spring-urged piston 37 defining the chamber 45. A passage 46 leads from the chamber to a recess 31 containing the blocking valve 28 controlling communication with the exhaust 32. The valve is operated by a solenoid 17 controlled by a switch 21. When the motor RS is to be operated, the switch 22 is actuated so that the pump supplies fluid to the paths 12, 56, switch 21, at this time, being raised so that the blocking valve 28 is closed. The fluid from path 56 flows past the valve 51, 52 into the chamber 45 and, when the pressure in the chamber reaches a predetermined low value, the piston 37 moves against an adjustable spring 40 to move the stem 38 from the valve 52 which is then urged against its seating, the pressure rising in paths 56, 12 to move the piston 10 of the motor against its spring 11. When the switch 22 is released, the check valve 15 closes to hold the piston 10 in position. The piston 10 is retracted by the spring 11 when the switch 21 is depressed to energize the solenoid 17 and raise the blocking member to connect the chamber 45 to exhaust, the piston 37 then being moved by its spring 40 to cause the stem 38 to abut and lift the valve 52 so that fluid from the motor can flow to exhaust. In another embodiment for controlling a double-acting ram, three valve assemblies of the type shown in Fig. 1, one of which is not actuated by a solenoid, are used to control the flow to the ends of the ram. Pressure-relief valves control the overall pressure in the circuit and the maximum pressure of fluid supplied to the ends of the ram.
Patent GB-329605-A (GB)
Title: Process for the manufacture of the hormone of the anterior lobe of the hypophysis
IPC: A61K38/24
Filed: 1929-10-14
Abstract: 329,605. Schering-Kahlbaum Akt.- Ges. Oct. 13, 1928, [Convention date]. Medicines for internal use.-The hormone which occurs in the anterior lobe of the hypophysis is obtained from the urine of pregnant warmblooded animals by precipitating lime from the filtered urine by addition of alkali or ammonium oxalate or other salt of an acid which forms a difficultly soluble calcium salt. After separation of the precipitate, the liquid is treated with an organic liquid such as alcohol to precipitate the hormone. Specification 295,680 is referred to.
Patent GB-299477-A (GB)
IPC: C03C17/32
Filed: 1928-10-27
Abstract: 299,477. British Thomson-Houston Co., Ltd., (Assignees of Pipkin, M.). Oct. 28, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Bulbs.-Electric lamps, and other glass articles which are heated in use, are coated with a mixture comprising castor oil, a resinous substance, and a pigment. Examples are given of the use of pigments of various colours with a solution of shellac in alcohol and castor oil. The coating is completed by drying, preferably at high temperatures such as 160‹ C., whereby reaction between the resinous substance and castor oil probably occurs.
Patent GB-698270-A (GB)
Title: Improvements in and relating to warp knitting machines
IPC: D04B23/00
Filed: 1950-12-22
Abstract: 698,270. Knitting-machines. POOL, LORRIMER & TABBERER, Ltd., and MILLWARD, S. L. Dec. 24, 1951. [Dec. 22, 1950] No. 31208/50. Class 74 (ii). To reduce imperfections in the yarns fed to the guides of a warp machine and thereby avoid breakages, a strip or ribbon 8 is positioned adjacent the guides and has a nap surface which strokes the yarns as they pass over it. By the provision of the strip, misplaced fibres or filaments are smoothed back into position before the yarn is fed to the needles of the machine. The strip may be folded back on itself or have a nap surface on both sides, some of the warps passing on one side and others on the other side of the strip. An additional thread or the like 13 is provided to hold the yarns on the strip. Alternatively, the yarns may pass between two adjacent strips. To enable the strip to be inserted between the warp yarns, a hand device 18 having elements 19, 20 provided with and without hooks in any desired sequence is brought so that the hooks engage predetermined yarns and facilitate their separation from the other yarns. The strip may be treated with any suitable lubricant or other dressing for conditioning the warp threads at the same time as they are stroked.
Patent GB-465656-A (GB)
Title: Improvements in and relating to lubricating systems for shaft bearings
IPC: F16N7/12
Filed: 1936-11-16
Abstract: 465,656. Lubricators. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 16, 1936 No. 31315. Conven tion date, Nov. 16 1935. [Class 12 (iii)] [Also in Group XXVI] The bearing 23 of a vertical shaft 11 is lubricated by an oi slinger 33 which is supplied with oil from the oil bath 25 by the wick 28. The induction of air intc the casing by the slinger is counteractec by forming vanes 42 on the lower face of the deflector 44.
Patent GB-841719-A (GB)
Title: Improvements in or relating to 6-methyl steroid compounds
Inventor: ELLIS BERNARD
IPC: C07J75/00
Filed: 1957-10-07
Abstract: The invention comprises 17 a -ethyl-17b -hydroxy-6 a -methylandrost-4-en-3-one and the preparation thereof by reducing 17 a  -ethynyl-6b -methylandrostane-3b :5a  : 17b -triol to the 17 a -ethyl compound, oxidizing this to 17 a -ethyl-6b -methylandrostane-5a  :17b -diol-3-one and dehydrating this under conditions which favour epimerization of the 6b -methyl group.  The reduction is preferably accomplished by hydrogenation in ethanol in presence of palladium on barium carbonate, the oxidation with chromium trioxide in pyridine (the use of chromium trioxide in acetic acid and potassium chromate in aqueous acetic acid is also referred to), and the dehydration by treatment in ethanol with a catalytic quantity of hydrochloric acid.  An example is given.  Specifications 801,201 and 802,005 are referred to.ALSO:A pharmaceutical preparation comprises 17 a  - ethyl - 17b - hydroxy-6 a -methylandrost-4-en-3-one in admixture with a pharmaceutical carrier, for example in dosage unit form in admixture with magnesium stearate. The preparation of implantation pellets of this composition and the preparation of a parenteral solution of the steroid in benzyl alcohol and ethyl oleate is described.  Specifications 801,201 and 802,005 are referred to.
Patent GB-465803-A (GB)
Title: The manufacture of tanning materials
IPC: C14C3/24
Filed: 1935-11-12
Abstract: Tanning-agents are obtained by treating a ligninsulphonic acid solution (or sulphite cellulose liquor) with a product obtained by condensing together, under relatively mild conditions, an unsulphonated monohydric aromatic hydroxy compound and an organic reagent capable of linking aromatic nuclei, e.g. formaldehyde, a substance yielding formaldehyde, such as paraformaldehyde or a methylol compound, acetaldehyde, chloral, acetone, dichloracetone, 2 : 2<1>-dichlorodiethyl ether, or glyoxal.  The conditions under which the condensation product is prepared must be such that, when sulphite cellulose liquor is added gradually to the fused product, an emulsion of the product in the liquor, stable to dilution and acidification, is ultimately obtained.  The products from ligninsulphonic acid (or sulphite cellulose liquor) and a phenolic condensation product as defined above may be further treated with an organic reagent capable of linking aromatic nuclei; this reaction may be effected at atmospheric or raised temperature or pressure in the presence or absence of an alkali hydroxide, or a salt of an organic or weak inorganic acid, as a catalyst.  Sulphite cellulose liquors which have been freed to some extent from calcium and ferric salts are preferred.  The products may be used alone or with other tanning materials, e.g. mineral salts or natural or synthetic tanning agents. In the examples: (1) 4 : 4<1>-dihydroxydiphenylmethane is heated with sulphite cellulose liquor (35 DEG  B<\>ae.); (2) phenol and formaldehyde are condensed in the presence of caustic soda, and the product is salted out and then warmed with sulphite cellulose liquor (35 DEG  B<\>ae.); (3) the phenolformaldehyde product taken in example 2 is heated with sulphite cellulose liquor (35 DEG  B<\>ae.) and formaldehyde; (4) phenol is heated with dichloracetone, and the viscous product is heated with sulphite cellulose liquor (35 DEG B<\>ae.); (5) m-cresol and formaldehyde are condensed in the presence of hydrochloric acid, and the resinous precipitate is mixed with sulphite cellulose liquor (35 DEG  B<\>ae.); (6) a technical chlorophenol mixture is condensed with formaldehyde in the presence of acetic and sulphuric acids, and the precipitated resin is warmed with sulphite cellulose liquor (35 DEG  B<\>ae.); (7) a resin prepared from crude cresol and chloral (or chloral hydrate) is mixed with sulphite cellulose liquor (35 DEG  B<\>ae.) and the mixture is heated with formaldehyde; (8) salicylic acid and formaldehyde are condensed in the presence of sulphuric acid, and the product is heated with sulphite cellulose liquor (32 DEG  B<\>ae.) free from lime and iron; for use in tanning, the product is diluted and acidified with formic acid.  Specification 171,729, [Class 2 (iii)], is referred to.
Patent GB-462449-A (GB)
Title: Improvements in or relating to sheet feed devices
IPC: A47K13/16
Filed: 1936-11-16
Abstract: 462,449. Feeding sheets. BREHMER, GEB. Nov. 16, 1936, No. 31343. Convention date, Feb. 27. Addition to 419,828. [Class 100 (i)] In a machine for feeding book signatures, folded sheets, &c. t( the oscillating saddle S of a book stitching machine as described ir the parent Specification, the re ciprocating fork for transferring the signatures from the conveyer 26 to the saddle S is replaced by a pair of positively driven feedrollers 34, 35 which are so arranged that the upper roller 35 is raised out of contact with the lower while the pusher 26<a> of the conveyer 26 feeds the signatures on to stationary saddle plates 30 31 which guide the signatures on to the saddle. The signatures are finally fed against a stop 63 on the saddle when a cam 52 permits springs 56, Fig. 4, to move a pivotal bearing-block 46 so that a rock-shaft 45, on which the roller 35 is mounted, is moved to bring the rollers 35, 34 into contact. The periphery of the roller 34 is shaped so as to be in alignment with the apex of the saddle S, and the roller 35 is shaped so as to coact exactly with the roller 34 as shown in Fig. 4. When the signature is engaged by the rollers their speed is equal to that of the conveyer 26 but the speed is then increased. The lower roller is driven by an oscillating segmental gear 38 operated by a cam 44, and the upper roller is driven by an oscillating segmental gear 61 on the shaft 40 of the gear 38. The movement of the bearing-block 46 is limited by an adjustable stop 64, Fig. 4, which regulates the pressure between the rollers 35, 34.
Patent GB-673058-A (GB)
Title: Regeneration of exhausted photographic silver bleaching solutions
IPC: G03C5/395
Filed: 1950-12-27
Abstract: 673,058. Regenerating photographic bleaching solutions. GENERAL ANILINE & FILM CORPORATION. Dec. 27, 1950 [Dec. 30, 1949], No. 31393/50. Class 98 (ii). An exhausted photographic bleaching solution containing an alkali metal ferricyanide, ferrocyanide ions, and an alkali metal bromide is regenerated by adding thereto an amount of either an alkali metal hypobromite, a mixture of an alkali metal bromate and hydrobromic acid in the molar ratio of 1 to 6, or a mixture of an alkali metal bromate and an alkali metal bromide in the molar ratio of 1 to 5 such that it will release one molar equivalent of bromine for each molar equivalent of ferrocyanide ion present in the exhausted bleaching solution. The regenerating mixture may also contain sulphamic acid or anhydrous alkali metal bisulphate, or may contain sulphuric acid. The bleaching solution may contain, in addition to the ferricyanide and bromide, a buffering agent such as a dialkali metal phosphate and a corrosion preventative such as an alkali metal tetraphosphate. In example 1, a solution of sodium hypobromite prepared by adding bromide to sodium hydroxide solution is added to an exhausted bleaching solution containing potassium ferricyanide and bromide, dibasic sodium phosphate, and sodium bisulphate. In example 2, potassium bromate and hydrobromic acid are successively added to the bleaching solution, in example 3 a mixture of potassium bromate and bromide followed by anhydrous sodium bisulphate, and in example 4, as in example 3 with the replacement of the bisulphate by sulphuric acid.